EP 3087730 B1 20180801 - METHOD FOR INVERSE TONE MAPPING OF AN IMAGE
Title (en)
METHOD FOR INVERSE TONE MAPPING OF AN IMAGE
Title (de)
VERFAHREN ZUR UMKEHRUNG VON DYNAMIKKOMPRESSION EINES BILDES
Title (fr)
PROCÉDÉ DE MAPPAGE TONAL INVERSE D'UNE IMAGE
Publication
Application
Priority
- EP 13306876 A 20131227
- EP 2014076183 W 20141202
- EP 14806604 A 20141202
Abstract (en)
[origin: WO2015096955A1] Method comprising, for each pixel, obtaining a pixel expansion exponent value (E'(p)) by low pass filtering luminance values of colors of pixels in its spatial neighborhood, obtaining a pixel luminance-enhancement value (Yenhance(p)) by extraction of high frequencies of luminance values of colors of pixels in its spatial neighborhood, and then inverse tone mapping the luminance (Y(p)) according to the equation Yexp(p) = Y(p)E'(p)x [Yenhance(p)]c.
IPC 8 full level
H04N 5/57 (2006.01); G06T 5/00 (2006.01); H04N 5/235 (2006.01)
CPC (source: EP KR US)
G06T 5/90 (2024.01 - US); G06T 5/94 (2024.01 - EP KR US); G06T 7/90 (2017.01 - EP US); H04N 5/57 (2013.01 - EP KR US); H04N 21/4318 (2013.01 - EP KR US); H04N 23/741 (2023.01 - KR); G06T 2207/20024 (2013.01 - US); G06T 2207/20064 (2013.01 - EP KR US); G06T 2207/20208 (2013.01 - EP KR US); H04N 23/741 (2023.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2015096955 A1 20150702; CN 105850114 A 20160810; CN 105850114 B 20190521; EP 3087730 A1 20161102; EP 3087730 B1 20180801; ES 2690371 T3 20181120; JP 2017502602 A 20170119; JP 6461165 B2 20190130; KR 102234092 B1 20210401; KR 20160102524 A 20160830; PL 3087730 T3 20181231; US 2016328830 A1 20161110; US 9911181 B2 20180306
DOCDB simple family (application)
EP 2014076183 W 20141202; CN 201480070990 A 20141202; EP 14806604 A 20141202; ES 14806604 T 20141202; JP 2016543050 A 20141202; KR 20167020125 A 20141202; PL 14806604 T 20141202; US 201415108562 A 20141202